Safety railroad device.



J. M. GALLOWAY.

SAFETY RAILROAD DEVIGE.

APPLICATION FILED FEBJO, 1912.

Patented June 11, 1912.

COLUMBIA PLANOGRAPH co., WASHINGTON. n, c.

UNITED STATES PATENT OFFICE.

JAMES MARTIN GALLOWAY, 0F SUNBRIGHT, TENNESSEE.

SAFETY RAILROAD DEVICE.

To all whom it may concern:

Be it known that I, JAMES M. GALLowAY, a citizen of the United States,residing at Sunbright, in the county of Morgan and State of Tennessee,have invented new and useful Improvements in Safety Railroad Devices, ofwhich the following is a specification.

This invention relates to safety appliance for railway cars and has foran object to provide an appliance of this character which may be readilyinstalled in the main train line pipe of an air brake system so as to beautomatically operated to bleed the air line on the dropping of thebrake beams thereby preventing the accidental derailment of the car.

In the drawing forming a portion of this application and in which likeletters of reference indicate similar parts in the several views, Figure1 is a top plan view of the main train line pipe showing the applicationof the invention thereto and illustrating the connections between thebleeding valves and the brake beams and also illustrating a carconventionally equipped with the brake beams. Fig. 2 is a perspectiveview of a portion of the train line pipe showing the application of theinvention thereto. Fig. 3 is a section through the train line valve andthe train line pipe and through one of the bleeding valves.

In carrying the invention into practice I provide a main train line pipe1 of an air brake system with a valve casing 2 having the alining portway 3 in communication with the train line pipe. In this casing ismounted a valve 4 having a main port way 5 and the branch port ways 6and 7.

The car A herein shown conventionally is provided with the usual brakebeams 8. The valve casing 2 is provided with the oppositely extendingconduits 9, each of which having a valve casing 10 in which the bleedingvalve 11 is rotatably mounted. The valve 11 is provided with a port way12 Specification of Letters Patent.

Application filed February 10, 1912.

Patented June 11, 1912.

Serial No. 676,708.

which may be brought intd re l position of the valve 4 the port way 5 isin registration with the train line pipe while the port ways 6 and 7 arein registration with the respective conduits 9, the valves 11 beingclosed to the outside air as is understood. IVhen either one of thebrake beams of the car falls one of the valves 11 will be operated so asto bleed the train line pressure and effect therethrough the automaticapplication of the brakes.

The valve 4 is provided with a handle 16 to be actuated manually toclose the train line to the conduits 9 so as to prevent the undue lossof air when repairing the car.

I claim In a safety appliance for cars, a car having a train line airpipe and a brake beam, a valve mounted in the train line pipe andprovided with a main port way normally open to the train line and branchport ways normally open to the train line, conduits in opencommunication with the branch port ways, a bleeding valve located ineach conduit and normally closed, and connect-ions between the bleedingvalve and the brake beam for opening the bleeding valve to theatmosphere on the fall of the beam from the car.

In'testimony whereof I aflix my signature in presence of two witnesses.

JAMES MARTIN GALLOIVAY.

Witnesses:

HUGH K. J ONES, JOHN JOHNSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

